Wrench



F. COOK Sept. 23, 1930.

WRENCH Filed April 17, 1929 1 liatente cl Sept. 23, 19 30 n UNITEDJSTATESPATENT OFFICE I FREDERICK COOK, F HOLLAND CENTRE, ONTARIO, CANADA WRENCH 7 Application filed Apri1'17, 1929, Serial No. 355,921, and in Canada September 14, 1928.

"The invention relates to improvements in wrenches as described in the present specihoation and shown in the accompanying drawingswhich form part of the same. Theinvention comprehends a simple and serviceable wrench thesalie'nt features of h which reside in the facility with which it may I be adjusted to the article to be turned. I

The inventionconsists essentially of a fwrench having a long rigid shank termijaw'atthe otherend. A slide is attached to i V the shank and. pivotally carries a mo vable aw bearing one or more teeth for engagement with a series of teeth on the shank with whlch it is normally held in engagement by means of a spring,preferably carried around a stem that is connected toa movable jaw and has abutton by which it may bedepressed to release the jaw for opening purposes.

Referring to the drawings, Figure 1 is a side elevation of the wrench.

Figure 2 is a view 'of the back thereof. Figure 3 is a side elevationof the head end of the wrench depicting the movable jaw away from the shank in order to disengage its teeth.

Figure 4; is a cross section taken on the line f 44; of Figure 1. 39 Like numerals of reference indicate corresponding parts in each of the figures throughout the drawings.

In the drawings, thereference numeral 5 generally indicates the shank which consists, of along bar like member having the custoinary handle (S at one end and a rigid jaw 17' at theother end. Teeth Sare arranged longitudinally on the shank adjacent to the jaw it 7 and extend therefrom for a suitable disv tance depending upon the extent "to which it is desired to openthe wrench, 9 is a slide fitted to the shank by means of a'T-shaped projection 10 which fits in a correspondingly shaped slot or opening 11 provided in the V be moved to and away from the rigid jaw 7.

12 isthe movable jaw which is swivelly connected to the slide 9' as at 13, the swivel preferably being composed of a 'knob 14 integral with or secured to the jaw and ennating in a handle at one end and rigid shanki5. By this construction theslidemay to preclude opening movement of the jaw but do not obstruct itsinward movement towards the fixed jaw. 17 is a stem pivotally attached at 18 to the movable jaw and projects through a slot 19 in theshank 5. The projecting end of the stem carries a rigid button 20 and intermediateofbutton and shank is'an encircling compression coil spring 21 seated against a washer 22 at one end and at the other end against said button. This springserves to normally retain the jaw in a locked position on the shank through the medium of its teeth.

To use the wrench it is closed about an object by merely manually sliding themow able jaw inwardly. To release the wrench from the object gripped, the button 20 manually depressed, thus swinging the movable jaw 12 to disengage its teeth 16 from those of the shank, see Figure 3.

What I claim is 1 A wrench of the class described comprising a'jaw, a toothed shank rigidly extending therefrom in which the teeth are disposed on the jaw side of the shank immediately adj acent to the said jaw, a slide mounted on the shank for lengthwise movement, a further jaw, teeth integral with the frontal portion thereof for engagement with those of the shank. a knob integral with the rear of the second mentioned jaw and lodged in an opening in the front of the slide to pivotally connect this. j aw, and a spring-pressed releasing member for normally retaining the pivotal jaw teeth of the pivoted jaw in engagement with those of the aforesaid shank.

Signed'at Holland Centre, Ontario, Canada, this 9th day of April, 1929. 

